Improvement in pipe-organs



2 Sheets-Sheet 1. J. GRATIAN.

Pipe-Organ.

No. 211,989. Patented Feb. 4,1879.

f6. /c @W W 2 Sheets-Sheet'J 2.

J. GRATIAN. Pipe-Organ.

Patented Feb. 4,1879.

/CMM UNITED STATES PATENT OEEToE.

JOSEPH GRATIAN, OF ALTON, lLL'lNOIS.

lHVIPROVEIVIENT IN PIPE-ORGANS.

Specilieation forming part of Letters Patent No. 211,989, dated February 4, 1879; application tiled November 1S, 1578.

To all fathom. 'it 'may concern.'

Be it linown that I, JOSEPH GRATIAN, of Alton, inthe Stato of lllinois, have made a new and useful Improvement in Pipe-Organs, of which the 'ollowin is a clear, full, and exact description, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a perspective view of the pedal ot'a pipe-organ with myimproved attachments. Fig. 2 is a vertical cross-section.

My invention relates to the swell-pedal of a pipe-organ; and consists in the combination ol" d eviees lor operating the usual swell by one half the pedal, while the other half may act simultaneously on the stops and swell-blinds, or on either separately, producing a crescendo, decreseendo, and si'orzando, and all the standard combinations et" stops it'rom soft to loud, with one and the same foot-motion that operates the swell.

lo enable others skilled in the art to make and use my invention, l will proceed to describe the manner in which l have carried it out.

ln, the drawi n gs, A represents the pedal ot' an organ, dividedlongitiulinallyinto two sections, u, and af, each section being pivoted so as to have an independent movement. The section a is for the usual swell, and the connections are, therefore, not shown. Section a acts upon the composition mechanism hereinafter described, and is attached by a pitman, l, to the arm l), secured rigidly to the pivoted l'rame C of the segment C, as shown in Fig.

:Ey this arrangement the performer can, by the movement ot the foot, causo a partial revolution of thc segment (l ot' a cylinder. This segmentis placed under the wheel-arms et' the squares, and as the wheels pass out of the slots and mount the cam-shaped grooved surface of the cylinder the pressure ofthe stai'idard E is removed l'rom the end of the slide l?, which is immediately pushed out bythe spring G. 'lhe reverse action takes place when the toe ofthe performer is raised and the heel pressed down, when the segment of the cylinder moves back and the wheels fall back into the cam-shaped grooves on the surface of the cylinder.

The springs H, which torce forward the squares or standards E, being stronger than the springs G, which throw out the slides, the slides are necessarily again thrown in, cutting ott' the wind from the pipes.

rlhe traces K, leading from the arms of the squares downward, lead to the usual draw stop knobs. The block L represents the balance-weight attached to the segment ot' the cylinder.

By this combination and arrangement of devices l am enabled to produce, by the foot ot' the performer, a complete crescendo simply by placing the foot inthe center ot' the double pedal A, and moving both sections simultaneonsly gradually from top to bottom at the toe, and reversing the action to produce the. decreseendo, while a sudden depression of both pedals produces the sforzando or sudden outburst ot' power.

Having thus described my invention, what I claim as new, and desire to secure by Let ters Patent, is-

l. rlhe divided pedal A, in combination with the swelhblind connections and the conne@ tions producing crescendo, deerescendo, and st'orzando ett'ects, substantially as shown and described.

2. The pivoted segment C o't` a cylinder provided with cam-grooves, in combination with the pedal A, wheel-arm of squares, springs (land li., and slides F, all constructed to oper ate substantially as and for the purpose set forth.

JOSEPH GRATIAN.

Tv'itncsses:

S. S. HOBART, Lucas PEEIEEENEEEGER. 

